| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve accuracy of engine revolution stop control by correcting torque deviation caused by change of a torque characteristic of an alternator, during engine revolution stop control. <P>SOLUTION: Every time engine revolution stop control (alternator F/B stop control) is performed for feed-back controlling load torque of an alternator 33 so as to match an actual engine revolution behavior to a target trajectory, engine rotation speed at reference timing is detected as stop position information, and frequency distribution of the engine revolution speed at the reference timing is stored. Thereafter, when an engine stop request occurs, a torque deviation correction amount is calculated which is for correcting torque deviation due to change of the torque characteristic of the alternator 33 based on the frequency distribution of the engine revolution speeds at the reference timing. Then, when performing the engine revolution stop control, the torque deviation correction amount is used to correct the reference load torque of the alternator 33, thus correcting a power generation command value. <P>COPYRIGHT: (C)2012,JPO&INPIT |
